1. An integrated circuit device having adaptive electrostatic discharge (ESD) protection and noise signal rejection, comprising:
an external connection adapted for connection to a data bus;
a data bus interface coupled to the external connection;
a circuit function coupled to the data bus interface;
an ESD protection circuit coupled to the external connection and a common of the integrated circuit device;
an ESD enhancement capacitor coupled to the external connection;
an ESD capacitor control, wherein the ESD capacitance control couples the ESD enhancement capacitor into the ESD protection circuit when an input of the ESD capacitor control is at a first voltage, and decouples the ESD enhancement capacitor from the ESD protection circuit when the input of the ESD capacitor control is at a second voltage;
a high pass filter coupled to the external connection, wherein the high pass filter passes high frequency noise signals but not low frequency data signals; and
a signal amplitude detector coupled to the high pass filter, wherein when the high frequency noise signals are present on the external connection the signal amplitude detector applies the second voltage to the ESD capacitor control, and when there are substantially no high frequency noise signals are on the external connection the signal amplitude detector applies the first voltage to the ESD capacitor control.
2. The integrated circuit device of claim 1, wherein the data bus interface is a data bus receiver.
3. The integrated circuit device of claim 1, wherein the data bus interface is a data bus driver.
4. The integrated circuit device of claim 1, wherein the data bus interface is a data bus driver and receiver.
5. The integrated circuit device of claim 1, wherein the high frequency noise signals are direct power injection (DPI) signals.
6. The integrated circuit device of claim 1, wherein the high frequency noise signals are electromagnetic interference (EMI) signals.
7. The integrated circuit device o f claim 1, wherein the ESD protection circuit comprises a first metal oxide semiconductor (MOS) device.
8. The integrated circuit device of claim 7, wherein the first MOS device is configured having a substantially grounded gate.
9. The integrated circuit device of claim 1, wherein the ESD capacitor control comprises a second metal oxide semiconductor (MOS) device having a gate coupled to the an output of the signal amplitude detector.
10. The integrated circuit device of claim 1, wherein the signal amplitude detector delays the second voltage after detecting the high frequency noise signals on the external connection.
11. The integrated circuit device of claim 1, wherein the signal amplitude detector comprises a signal detection diode and a low pass filter.
12. The integrated circuit device of claim 1, wherein the circuit function is a digital logic function.
13. The integrated circuit device of claim 1, wherein the circuit function is an analog circuit function.
14. The integrated circuit device of claim 1, wherein the circuit function is a mixed signal circuit function.
15. The integrated circuit device of claim 1, wherein the ESD capacitor control comprises a metal oxide semiconductor (MOS) device and a low value resistor, the ESD enhancement capacitor is connected to the low value resistor, wherein the MOS device decouples the low value resistor and the ESD enhancement capacitor from the ESD protection circuit when the input of the ESD capacitor control is at the second voltage.
16. The integrated circuit device of claim 15, the ESD enhancement capacitor is decoupled from the ESD protection circuit when the MOS device couples the low value resistor and ESD enhancement capacitor to the common of the integrated circuit device.
17. The integrated circuit device of claim 1, wherein the ESD capacitor control comprises a metal oxide semiconductor (MOS) device, a bipolar transistor and a low value resistor, the ESD enhancement capacitor is connected to the low value resistor, wherein the bipolar transistor decouples the low value resistor and the ESD enhancement capacitor from the ESD protection circuit when the input of the ESD capacitor control is at the second voltage.
18. The integrated circuit device of claim 1, further comprising a diode coupled between the external connection and the ESD enhancement capacitor and the ESD capacitor control.
19. The integrated circuit device of claim 18, wherein the diode is a vertical PNP device formed during fabrication of the integrated circuit device.
20. The integrated circuit device of claim 1, wherein the data bus is a Local Interconnect Network (LIN) bus.
21. The integrated circuit device of claim 1, wherein the data bus is a Controller Area Network (CAN) bus.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for distributing a requested torque to one or two drive axles of a vehicle, wherein the requested torque depends on a driver’s request, wherein for the first drive axle a first maximum value for a torque is calculated as a function of an adhesion limit of the first drive axle, wherein for the second drive axle a second maximum value for a torque is calculated as a function of an adhesion limit of the second drive axle, wherein at least a first portion of the requested torque is transmitted to the first drive axle, wherein the first portion does not exceed the first maximum value, wherein a second portion of the requested torque is fed to the second drive axle if the first portion does not correspond to the requested torque, and wherein the second portion does not exceed the second maximum value, wherein the requested torque is divided into the first portion and the second portion as a function of at least one parameter.
2. The method as claimed in claim 1, wherein the parameter depends on efficient energy consumption.
3. The method as claimed in claim 1, wherein the parameter depends on an adhesion behavior of the drive axles.
4. The method as claimed in claim 1, wherein the parameter depends on driving stability of the vehicle.
5. The method as claimed in claim 1, wherein two drives are used to make available the torque for the two drive axles, wherein in each case one drive is assigned to one drive axle, and wherein the parameter depends on an operating parameter of the drive.
6. The method as claimed in claim 5, wherein an energy source is provided for a drive, wherein the parameter depends on an operating state of the energy source.
7. The method as claimed in claim 6, wherein the drive has an electric motor, wherein the energy source is a battery, and wherein the operating parameter is a state of charge of the battery.
8. The method as claimed in claim 5, wherein the first drive is an internal combustion engine and the second drive is an electric motor, wherein the internal combustion engine only drives the first drive axle, and the electric motor only drives the second drive axle.
9. The method as claimed in claim 1, wherein the maximum values of the torques are calculated in real time.
10. The method as claimed in claim 1, wherein minimum values for the first portion and the second portion are calculated as a function of a parameter, and wherein at least the minimum value of the torque is respectively applied to the first and second drive axles as long as the minimum value does not exceed the maximum value.
11. The method as claimed in claim 10, wherein the minimum values are calculated in real time.
12. The method as claimed in claim 1, wherein, when the first portion approximates to the first maximum value, the second portion is increased using a transition function of the distance of the first portion from the maximum value.
13. A computing unit which is designed to carry out the method as claimed in claim 1.
14. A computer program which is designed to carry out the method as claimed in claim 1 when it is run on a computing unit.